Mike, Hive and Oozie are projects that build on top of Hadoop. Hadoop proper does not use Derby.
Hope this clarifies. Thxs. Alejandro On Tue, Aug 9, 2011 at 1:38 PM, Segel, Mike <mse...@navteq.com> wrote: > Uhm... > Ok... I just did a quick Google search on Hadoop and Derby... > https://issues.apache.org/jira/browse/HADOOP-4133 > > Then there's this subproject called Hive... :-) > Oh and then there's this other subproject called Oozie... :-) > > Now Cloudera and other support MySQL in the role of Derby aka Cloudscape > aka JavaDB. > Here's a link to a blog on setting up MySQL... > > http://www.mazsoft.com/blog/post/2010/02/01/Setting-up-HadoopHive-to-use-MySQL-as-metastore.aspx > > :-) > > > -----Original Message----- > From: Harsh J [mailto:ha...@cloudera.com] > Sent: Tuesday, August 09, 2011 2:12 PM > To: common-dev@hadoop.apache.org > Subject: Re: Architectural Questions > > Hadoop doesn't use derby. It does, however, use HSQLDB for its external DB > I/O and example components. > > On Tue, Aug 9, 2011 at 3:43 PM, JSaravanaKumar <saravana.had...@gmail.com> > wrote: > > > > can you please help me in understanding Why Derby is used along with > Hadoop ? > > -- > > View this message in context: > > http://old.nabble.com/Architectural-Questions-tp32224940p32224940.html > > Sent from the Hadoop core-dev mailing list archive at Nabble.com. > > > > > > > > -- > Harsh J > > > The information contained in this communication may be CONFIDENTIAL and is > intended only for the use of the recipient(s) named above. If you are not > the intended recipient, you are hereby notified that any dissemination, > distribution, or copying of this communication, or any of its contents, is > strictly prohibited. If you have received this communication in error, > please notify the sender and delete/destroy the original message and any > copy of it from your computer or paper files. >
